\begin{tikzpicture}
	\tkzDefPoints{0/0/B, 3/0/C, 0.8/1.5/A, 2.2/1.5/D}
    \tkzDrawPolygon(A,B,C,D)
    \tkzMarkSegments(A,B  C,D)
    \tkzLabelPoints[left](A,B)
    \tkzLabelPoints[right](D,C)
\end{tikzpicture}

